package com.kaifamiao.www.demo.do0809;


public class LinkedList {
    private Node first;

    public void add (String value){
        if (first == null){
            first = new Node();
            first.value = value;
        }else {
            Node current = first;
            while (current.next != null){
                current = current.next;
            }
            current.next = new Node();
            current.next.value = value;
        }
    }
    private class Node{
        String value;
        Node next;
    }
}
